/*
 * Copyright 2009 Griffin Brown Digital Publishing Ltd
 * All rights reserved.
 *
 * This file is part of Probatron.
 *
 * Probatron is free software: you can redistribute it and/or modify
 * it under the terms of the Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * Probatron is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * Affero General Public License for more details.
 *
 * You should have received a copy of the Affero General Public License
 * along with Probatron.  If not, see <http://www.gnu.org/licenses/>.
 */

/*
 * $Header:
 * /TEST/xmlprobe-dev/shail-dev/src/com/griffinbrown/shail/expr/LessThanEqualExprImpl.java,v 1.1
 * 2007/07/23 12:27:29 GBDP\andrews Exp $ $Revision: 1.1 $ $Date: 2009/01/08 14:41:27 $
 * 
 * ====================================================================
 * 
 * Copyright 2000-2002 bob mcwhirter & James Strachan. All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without modification, are
 * permitted provided that the following conditions are met:
 *  * Redistributions of source code must retain the above copyright notice, this list of
 * conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright notice, this list of
 * conditions and the following disclaimer in the documentation and/or other materials provided
 * with the distribution.
 *  * Neither the name of the Jaxen Project nor the names of its contributors may be used to
 * endorse or promote products derived from this software without specific prior written
 * permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 * 
 * ==================================================================== This software consists
 * of voluntary contributions made by many individuals on behalf of the Jaxen Project and was
 * originally created by bob mcwhirter <bob@werken.com> and James Strachan
 * <jstrachan@apache.org>. For more information on the Jaxen Project, please see
 * <http://www.jaxen.org/>.
 * 
 * @version $Id: LessThanEqualExprImpl.java,v 1.1 2009/01/08 14:41:27 GBDP\andrews Exp $
 */

package com.griffinbrown.shail.expr;

import org.apache.log4j.Logger;
import org.probatron.jaxen.expr.Expr;


class LessThanEqualExprImpl extends RelationalExprImpl
{
    /**
       * 
       */
    private static final long serialVersionUID = 7980276649555334242L;
    
    private static Logger logger = Logger.getLogger( LessThanEqualExprImpl.class );


    LessThanEqualExprImpl( Expr lhs, Expr rhs )
    {
        super( lhs, rhs );
    }


    public String getOperator()
    {
        return "<=";
    }


    protected boolean evaluateDoubleDouble( Double lhs, Double rhs )
    {
        return lhs.compareTo( rhs ) <= 0;
    }


    protected boolean evaluateObjectObject( Object lhs, Object rhs )
    {
        logger.debug("lhs="+lhs+" rhs="+rhs);
        return evaluateDoubleDouble( (Double)lhs, (Double)rhs );
    }

}
